On Tue, Jul 26, 2022 at 9:12 AM Felician Nemeth <felician.nemeth@gmail.com>
wrote:

> > Yes, I think this is a great idea to allow the user to configure
> > server-specific things easily and automatically save it
> > .dir-locals.el.
> >
> > The question is how.  Not sure if variables is the way to go.
>
> Rust-analyzer can emit the definition of its configuration variables as
> a JSON schema.  There are toml and yaml servers that hopefully
> understand this schema description.
>
> So one possibility for Eglot is to help the user to edit a
> project/rust.toml or a global ~/.emacs.d/eglot/rust.toml file and
> arrange to call eglot-signal-didChangeConfiguration when the user saves
> the file.
>

I don't disagree with this, though it seems different from your first idea.
When is the .dir-locals.el written in your example, or were you imagining
a use with `dir-locals-set-class`?
Regardless,  if this works, why shouldn't it be rust-mode.el's job to do
exactly
this?  Editing "toml" files is outside the scope of LSP.

João